Endoconidiogenesis in Endoconidioma populi and Phaeotheca fissurella

Details of the development of endoconidia were basically the same in Endoconidioma populi and Phaeotheca fissurella. In both species, endoconidiogenesis involved (i) subdivision of conidiogenous mother cells by septation to form two to several daughter cells; (ii) accumulation of an electron-dense m...

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Bibliographic Details
Published in:Mycologia 2004-09, Vol.96 (5), p.1136-1142
Main Authors: Tsuneda, A., Tsuneda, I., Currah, R. S.
Format: Article
Language:English
Subjects:
Ascomycota
black yeasts
Cell Biology/Ultrastructure
Cell walls
cleistopycnidium
Conidia
conidioma
Daughter cells
endoconidiogenesis
Endoconidioma populi
endoconidium
forest trees
fungal anatomy
Fungi
Genera
Giant cells
host plants
Materials
meristematic black fungi
Mother cells
Phaeotheca fissurella
Populus tremuloides
Septum
septum schizolysis
ultrastructure
Yeasts
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Summary:Details of the development of endoconidia were basically the same in Endoconidioma populi and Phaeotheca fissurella. In both species, endoconidiogenesis involved (i) subdivision of conidiogenous mother cells by septation to form two to several daughter cells; (ii) accumulation of an electron-dense material between the daughter and mother cell walls; and (iii) separation of the daughter cells by septum schizolysis, accompanied by the dissolution of mother cell wall. Conidiomata of E. populi were unique in having a closed peridium and a locule filled with conidiogenous mother cells and, therefore, we proposed the new term, cleistopycnidium (pl. -a), for this structure. In the cleistopycnidium of E. populi, endoconidiation usually began in the core of the locule and spread outward. Release of endoconidia was by the degeneration of peridial cell walls.
ISSN:0027-5514
1557-2536
DOI:10.1080/15572536.2005.11832911